Frontier Channel

News and commentary about the Great Frontiers

ISS007-E-10807 (21 July 2003) --- This view of Earth's horizon as the sunsets over the Pacific Ocean was taken by an Expedition 7 crewmember onboard the International Space Station (ISS). Anvil tops of thunderclouds are also visible. Credit: Earth Science and Remote Sensing Unit, NASA Johnson Space Center

Image Credit: ISS007-E-10807 (21 July 2003) – Earth Science and Remote Sensing Unit, NASA Johnson Space Center

A Tour of the Moons of Saturn – Tethys

Richard Leis

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Published.

Ithaca Chasma is an ancient and gigantic rift cutting across the heavily cratered surface of Tethys. Less surprising than many of the other moons of Saturn, Tethys does have its own mysteries, including bright crater floors, younger plains, and evidence of very early activity that resulted in Ithaca Chasma.

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